The Health Products Regulatory Authority in Ireland has said it is closely monitoring an Austrian investigation into reports of adverse events following vaccinations from one batch of AstraZeneca vaccine.
Austrian authorities are investigating the death of one person and illness in a second person after receiving the vaccine.
They have have suspended inoculations from a specific batch of AstraZeneca as a precaution.
"The Federal Office for Safety in Health Care (BASG) has received two reports in a temporal connection with a vaccination from the same batch of the AstraZeneca vaccine in the district clinic of Zwettl," in Lower Austria province, it said.
A 49-year-old woman died as a result of severe coagulation disorders, while a 35-year-old woman developed a pulmonary embolism and is recovering, it said. A pulmonary embolism is an acute lung disease caused by a dislodged blood clot.
In a statement, the HPRA said that at present there is "no evidence of a causal relationship" between the vaccine and the events.
It said the suspension of this specific batch is a "precautionary action by the Austrian regulator pending further investigation".
The HPRA said that tens of millions of doses of this vaccine have been used worldwide and the reported side affects have been in line with those identified during the clinical trials and that the benefit-risk profile of this particular vaccine remains positive.
"There is no confirmation that the vaccine caused these events," it said in a statement.
The authority is to continue to monitor the situation along with the European Medicines Agency and other national authorities in Europe.